Encapsulation of charge-diffuse peralkylated onium cations in the cavity of cucurbit[7]uril.
Cucurbit[7]uril binds, with considerable size selectivity, NR(4)(+), PR(4)(+), and SR(3)(+) cations (R=Me, Et, (n)Pr, (n)Bu), with the smaller guests inside its cavity, rather than at the carbonyl-lined portals.
St-Jacques
Antony D
AD
Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Canada ON K7L 3N6.
Wyman
Ian W
IW
Macartney
Donal H
DH